Facebook is lots of fun and great at keeping you in contact with friends and family as well as sharing your news and views.
Using the privacy settings on Facebook will save you lots of headaches like having someone you don't like see all your stuff, or copy your pics. Choose privacy setting carefully and have a strong password that you don't share with anyone (not even your closest friends).
http://www.facebook.com/home.php?#!/privacy/explanation.php

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